Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
OCS, CS (Joint) |
2022-01-13 15:30 |
Yamaguchi |
Conference room 204A・B at KDDI Ishin-hall (Yamaguchi, Online) (Primary: On-site, Secondary: Online) |
Analyses of Noise in Two-Mode Phase-Sensitive Optical Parametric Amplifiers Kazuro Kikuchi (NIAD-QE) OCS2021-33 |
We analyze the noise characteristics of an optical transmission system repeated by two-mode phase-sensitive optical para... [more] |
OCS2021-33 pp.1-6 |
PN, NS, OCS (Joint) |
2020-06-18 12:00 |
Online |
Online (Online) |
Analytical Expressions for Bit Error Rate in Stokes-Vector Modulation-Demodulation Systems Kazuro Kikuchi (NIAD-QE) OCS2020-3 |
The polarization-modulated signal can be demodulated by directly detecting the Stokes vector. In this study, we theoreti... [more] |
OCS2020-3 pp.11-16 |
OCS, PN, NS (Joint) |
2019-06-20 14:15 |
Iwate |
MALIOS(Morioka) (Iwate) |
Quantum theory of Stokes vector receivers Kazuro Kikuchi (NIAD-QE) OCS2019-16 |
Polarization-modulated signals can be demodulated via direct detection of Stokes vectors. In this study, we develop a qu... [more] |
OCS2019-16 pp.31-36 |
OPE, LQE, OCS |
2018-10-19 13:55 |
Saga |
(Saga) |
Channel Capacity in Quantum-Noise-Limited Optical Communication Systems Kazuro Kikuchi (NIAD-QE) OCS2018-47 OPE2018-83 LQE2018-72 |
In this paper, we analyze the bit-error rate (BER) and mutual information characteristics of intensity modulation/direct... [more] |
OCS2018-47 OPE2018-83 LQE2018-72 pp.105-110 |
NS, OCS, PN (Joint) |
2018-06-15 10:25 |
Fukushima |
Koriyama-Shoko-Kaigisho (Fukushima) |
Sensitivity Analyses of Stokes-Vector Receivers Kazuro Kikuchi (NIAD-QE) OCS2018-16 |
Demodulation of multi-level polarization-modulation optical signals can be done via Stokes-vector direct detection fol... [more] |
OCS2018-16 pp.31-36 |
OCS, OPE, LQE |
2017-10-27 09:55 |
Kumamoto |
Josaien, Sakuranobaba (Kumamoto) |
Analyses of Receiver Sensitivity and Spectral Efficiency of Three-dimensional Optical Polarization Modulation/demodulation Schemes using Direct-detection-based Stokes-vector Receivers Kazuro Kikuchi (NIAD-QE) OCS2017-48 OPE2017-80 LQE2017-53 |
We can demodulate the multi-level polarization-modulation optical signal with Stokes-vector direct detection followed by... [more] |
OCS2017-48 OPE2017-80 LQE2017-53 pp.61-66 |
PN, NS, OCS (Joint) |
2017-06-16 15:00 |
Akita |
Akita Univ. (Akita) |
Receiver-sensitivity Analyses of the Stokes Analyzer Demodulating Dual-polarization PAM Signals Kazuro Kikuchi (NIAD-QE) OCS2017-19 |
We can demodulate the dual-polarization pulse-amplitude-modulation (DP-PAM) signal with direct detection, where the Stok... [more] |
OCS2017-19 pp.45-50 |
ITE-BCT, OCS, OFT, IEE-CMN (Joint) [detail] |
2014-11-14 13:00 |
Hiroshima |
(Hiroshima) |
Digital coherent optical receivers using analog-to-digital conversion at the symbol rate Kazuro Kikuchi (Univ. of Tokyo) OCS2014-87 |
This paper discusses the principle of clock extraction and requirements for the sampling rate of AD converters in digita... [more] |
OCS2014-87 pp.65-70 |
ITE-BCT, OCS, OFT, IEE-CMN (Joint) [detail] |
2014-11-14 13:25 |
Hiroshima |
(Hiroshima) |
Experimental demonstration of 8-state Trellis-coded 4D-QPSK optical modulation scheme Shota Ishimura, Kazuro Kikuchi (Univ. of Tokyo) OCS2014-88 |
Recently, in coherent optical communication systems, 4-dimesnional (4D) modulation formats designed by using two degrees... [more] |
OCS2014-88 pp.71-76 |
OPE, OCS |
2014-05-16 10:45 |
Tokyo |
Kikai-Shinko-Kaikan Bldg. (Tokyo) |
Proposal and Performance Analyses of Novel Direct-detection Optical Receivers Demodulating Dual-polarization Multi-level Intensity-modulated Signals Kazuro Kikuchi (Univ. of Tokyo) OCS2014-4 OPE2014-4 |
(Advance abstract in Japanese is available) [more] |
OCS2014-4 OPE2014-4 pp.19-24 |
LQE, OCS, OPE |
2013-10-25 17:35 |
Fukuoka |
(Fukuoka) |
Multi-dimensional modulation and demodulation schemes in coherent optical communication systems Shota Ishimura, Kazuro Kikuchi (Univ. of Tokyo) OCS2013-81 OPE2013-127 LQE2013-97 |
In newly-developed coherent optical communication systems, we can employ four-dimensional optical modulation including t... [more] |
OCS2013-81 OPE2013-127 LQE2013-97 pp.159-164 |
OFT, OCS (Joint) |
2013-08-23 15:15 |
Hokkaido |
(Hokkaido) |
Pre-dispersed Mutual Phase-conjugation Scheme for Fiber-nonlinearity Mitigation in Coherent Optical Communication Systems
-- Proposal and Analysis of Parallel Back-propagation Method -- Hongbo Lu, Kazuro Kikuchi (Univ. of Tokyo) OCS2013-46 |
We propose and analyze an effective and practical method for mitigating signal distortion caused by fiber nonlinearity. ... [more] |
OCS2013-46 pp.55-60 |
OCS |
2013-07-25 17:45 |
Tokyo |
Sumida-Sangyo-Kaikan (Tokyo) |
Multi-level signaling in the Stokes space and its application to large-capacity coherent optical transmission Kazuro Kikuchi (Univ. of Tokyo), Shojiro Kawakami (Photonic Lattice) OCS2013-28 |
The Stokes vector of an optical signal does not depend on its absolute phase but is dependent on the relative phase and ... [more] |
OCS2013-28 pp.49-54 |
OCS |
2013-07-26 09:00 |
Tokyo |
Sumida-Sangyo-Kaikan (Tokyo) |
[Tutorial Invited Lecture]
Fundamentals of Digital Coherent Optical Communication Systems Kazuro Kikuchi (Univ. of Tokyo) OCS2013-29 |
The new technology called Digital Coherent Optical Communications has recently emerged, combining ultrafast digital sign... [more] |
OCS2013-29 pp.55-60 |
OCS, OFT (Joint) |
2012-08-31 15:25 |
Hokkaido |
(Hokkaido) |
Influence of channel misalignment of time-interleaved DAC on sensitivity degradation in coherent optical receivers Changyo Han, Koji Igarashi, Kazuro Kikuchi (Univ. of Tokyo) OCS2012-39 |
The demand for higher-speed digital-to-analog converters (DACs) in the optical transmitter is increasing as the data rat... [more] |
OCS2012-39 pp.59-64 |
OCS |
2012-07-26 13:40 |
Shizuoka |
(Shizuoka) |
Nyquist WDM Transmission of 10 Gsybmol/s Polarization-Division Multiplexed 64QAM Optical Signals Koji Igarashi, Kazuhiro Katoh, Kazuro Kikuchi (Univ. Tokyo) OCS2012-22 |
(Advance abstract in Japanese is available) [more] |
OCS2012-22 pp.7-11 |
OCS, LQE, OPE |
2011-10-27 09:45 |
Kochi |
Kochi University of Technology (Kochi) |
Single-shot waveform measurement of ultrafast optical signals by streching the time axis Koji Igarashi, Masatoshi Usui, Kazuhiro Katoh, Kazuro Kikuchi (Univ. Tokyo) OCS2011-57 OPE2011-95 LQE2011-58 |
[more] |
OCS2011-57 OPE2011-95 LQE2011-58 pp.17-22 |
OFT, OCS (Joint) |
2011-08-26 13:05 |
Hokkaido |
(Hokkaido) |
Novel configuration of FIR filters adapted by the decision-directed LMS algorithm in digital coherent optical receivers Yojiro Mori, Kazuro Kikuchi (Univ. of Tokyo) OCS2011-52 |
We propose a novel configuration of finite-impulse-response (FIR) filters adapted by the decision-directed least-mean-sq... [more] |
OCS2011-52 pp.39-44 |
OFT, OCS (Joint) |
2011-08-26 13:30 |
Hokkaido |
(Hokkaido) |
Multi-Impairment Monitoring from Adaptive Frequency-Domain Equalizer in Digital Coherent Optical Receivers Md. Saifuddin Faruk, Kazuro Kikuchi (Univ. of Tokyo) OCS2011-53 |
After introducing a novel adaptive frequency-domain equalizer (FDE) based on the constant-modulus algorithm (CMA) for di... [more] |
OCS2011-53 pp.45-50 |
OCS, CS (Joint) |
2011-01-28 09:00 |
Tokushima |
The University of Tokushima (Tokushima) |
1000-km WDM Transmission of 40G-symbol/s DPSK and DQPSK signals Hiroki Okui, Koji Igarashi, Kazuro Kikuchi (Univ. of Tokyo) OCS2010-107 |
We perform experiments of 1000-km wavelength-division-multiplexed (WDM) transmission of 40G-symbol/s RZ-DPSK and RZ-DQPS... [more] |
OCS2010-107 pp.49-54 |